Black Loosejaw

Malacosteus Niger
Black Loosejaw - Marinewise © 2023 MarineWise

Quick Facts

Scientific name Malacosteus Niger
Other names Stoplight Loosejaw, Northern Stoplight Loosejaw, Lightless Loosejaw, Black Hinged Head
Size Up to 27 cm (10.6 in)
Weight Up to 8 g (.017 lb)


Habitat & AU Distribution Deepsea, ocean waters, bathypelagic & mesopelagic zones
Depth Range
Black Loosejaw Distribution
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